Interferometric modulation devices having triangular subpixels

Abstract

At least some subpixels in an interferometric modulator display are formed in a triangular shape. Such triangular subpixels may be formed and/or addressed in a variety of manners. At least some individual triangular subpixels may be separately addressable. However, a plurality of triangular subpixels may be addressable as a group, e.g., as a group of 2, 3, 4 or more. A single pixel may include varying numbers of triangular subpixels. For example, a single pixel may include 3, 6, 9, 12, 15, 18, 21 or some other number of triangular subpixels. Alternatively, a single pixel may include 4, 8, 12, 16, 20, or some other number of triangular subpixels. A single pixel may include triangular subpixels that are configured to be separately addressable and/or triangular subpixels are configured to be addressable as a group.

1 . An apparatus, comprising:
 a substantially transparent substrate;   an array of subpixels disposed on the substantially transparent substrate, the subpixels including two walls that define a cavity, one of the walls being movable relative to the other through a range of positions, the walls causing the cavity to operate interferometrically in at least one of the positions, producing an optical response to visible light that enters the subpixels;   a plurality of electrodes configured for conducting electrical signals to the array of subpixels, wherein the plurality of electrodes includes:
 first electrodes configured for conducting electrical signals to a first plurality of subpixels; 
 second electrodes for conducting electrical signals to a second plurality of subpixels; 
 third electrodes for conducting electrical signals to a third plurality of subpixels that are adjacent the second plurality of subpixels, 
 wherein the second and third plurality of subpixels correspond with a color; and 
   control circuitry configured to apply electrical signals for controlling the array of subpixels via the plurality of electrodes.